Question 1

In a population of pepper moths,the frequency of the DD genotype (dark-colored) is 0.25,and the frequency of the dd genotype (light-colored) is 0.25.What is the frequency of the Dd genotype (dark-colored) ?

Accepted Answer

A)  0.25
B)  0.5
C)  0.75
D)  0.1
E)  1.0F) All of the above
G) C) and D)

Question 2

A lone wolf that has been rejected by its pack joins another pack.What has occurred?

Accepted Answer

A)  directional selection
B)  a bottleneck effect
C)  stabilizing selection
D)  gene flow
E)  genetic driftF) B) and E)
G) C) and D)

Question 3

One of the most important observations made by Darwin on his trip around the world was that

Accepted Answer

A)  species change from place to place and throughout time.
B)  species have remained constant over time in some places but not in others.
C)  species have remained constant over time.
D)  species remain constant from place to place.
E)  DNA from all species is very similar.F) All of the above
G) B) and D)

Question 4

What is the term for the accumulation of small changes in the gene pool of a species over time?

Accepted Answer

A)  microevolution
B)  genetic drift
C)  directional selection
D)  macroevolution
E)  allele driftF) B) and E)
G) B) and D)

Question 5

Darwin sailed around the world on the ship named the HMS

Accepted Answer

A)  Lyell.
B)  Fitzroy.
C)  Cuvier.
D)  Beagle.
E)  Lamarck.F) A) and C)
G) A) and B)

Question 6

Inbreeding within a population is an example of

Accepted Answer

A)  mutation.
B)  genetic drift.
C)  gene flow.
D)  nonrandom mating.
E)  natural selection.F) A) and E)
G) A) and D)

Question 7

The organisms,examined by Darwin on the Galapagos Islands,which were most important in his development of the theory of natural selection,were

Accepted Answer

A)  rabbits and hares.
B)  plants.
C)  finches.
D)  fish.
E)  monkeys and armadillos.F) C) and E)
G) A) and D)

Question 8

A variety of genotypes and phenotypes in a population is useful because it

Accepted Answer

A)  makes life more interesting.
B)  makes genetic drift an unlikely occurrence.
C)  means that the gene pool is constant and unchanging.
D)  allows species to survive if the environment changes.
E)  makes gene flow in and out of a population unlikely.F) B) and D)
G) D) and E)

Question 9

Birds and insects both have wings,but we do not consider this similarity as evidence of relatedness because

Accepted Answer

A)  bird and insect wings function on different physics principles of lift.
B)  insect wings are vestigial.
C)  the wings are not homologous structures with a common ancestral origin.
D)  these animals did not evolve in the same region or live at the same time perioD.
E)  the wings are different in sizE.F) A) and B)
G) None of the above

Question 10

Which type of natural selection occurs when an intermediate phenotype is favored?

Accepted Answer

A)  disruptive selection
B)  directional selection
C)  genetic drift selection
D)  stabilizing selection
E)  adaptive selectionF) None of the above
G) All of the above

Question 11

Figure: 
-This figure shows the three different types of natural selection.What does "A" represent?

Accepted Answer

A)  Disruptive selection
B)  Directional selection
C)  Genetic drift selection
D)  Stabilizing selection
E)  Adaptive selectionF) D) and E)
G) A) and D)

Question 12

Natural selection was independently proposed as a means of evolution by which of the following individuals?

Accepted Answer

A)  Lyell
B)  Wallace
C)  Cuvier
D)  Lamarck
E)  MalthusF) A) and E)
G) A) and C)

Question 13

Which is not a condition necessary for Hardy-Weinberg equilibrium?

Accepted Answer

A)  There is no gene flow.
B)  Nonrandom mating does not occur.
C)  No mutations occur.
D)  There is no natural selection.
E)  There is genetic drift.F) C) and D)
G) A) and E)

Question 14

The Afrikaner population of South Africa is descended mainly from a few Dutch colonists.The Afrikaner population now has a much higher frequency of the gene that causes Huntington disease than is present in the rest of the people of South Africa.This is likely due to

Accepted Answer

A)  the bottleneck effect.
B)  disruptive selection.
C)  the founder effect.
D)  stabilizing selection.
E)  cohort selection.F) C) and E)
G) B) and C)

Question 15

Which of the following statements about fossils is least accurate?

Accepted Answer

A)  Fossils are mostly from the hard parts of organisms.
B)  Fossils are found in sedimentary rock.
C)  Soft body parts are often found along with the hard parts of fossils.
D)  In general,the older a fossil is,the deeper it is burieD.
E)  The fossil record indicates that life has generally progressed from simple to more complex.F) A) and E)
G) B) and E)

Question 16

The organism which is an intermediate between reptiles and birds is

Accepted Answer

A)  Ambulocetus.
B)  Rodhocetus.
C)  Archaeopteryx.
D)  Pakicetus.
E)  Geospiza.F) C) and E)
G) B) and C)

Question 17

If the Hardy-Weinberg equilibrium is met,what is the net effect?

Accepted Answer

A)  evolution leading to a population better adapted to an unchanging environment
B)  no evolution,because the alleles in the population remain the same
C)  very slow and continuous evolution with no increased adaptation
D)  evolution leading to a population better adapted to a changing environment
E)  very rapid and continuous evolution with no increased adaptationF) C) and D)
G) D) and E)

Question 18

A biologist finds structures that serve the same function but are not considered similar,nor do they share a recent common ancestor.These are

Accepted Answer

A)  vestigial structures.
B)  analogous structures.
C)  transitional structures.
D)  directional structures.
E)  homologous structures.F) B) and C)
G) A) and B)

Question 19

A research paper on the man who proposed the idea of inheritance of acquired characteristics would be on which person?

Accepted Answer

A)  Cuvier
B)  Lamarck
C)  Fitzroy
D)  Lyell
E)  WallaceF) A) and B)
G) A) and C)

Question 20

If there is a change in allele frequency of a gene pool due to chance,it is referred to as

Accepted Answer

A)  mutation.
B)  genetic drift.
C)  gene flow.
D)  nonrandom mating.
E)  natural selection.F) C) and D)
G) A) and E)

Exam 14: Evidence of Evolution

Darwin sailed around the world on the ship named the HMS

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The organism which is an intermediate between reptiles and birds is

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What is the term for the accumulation of small changes in the gene pool of a species over time?

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A lone wolf that has been rejected by its pack joins another pack.What has occurred?

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Figure: -This figure shows the three different types of natural selection.What does "A" represent?

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Which is not a condition necessary for Hardy-Weinberg equilibrium?

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In a population of pepper moths,the frequency of the DD genotype (dark-colored) is 0.25,and the frequency of the dd genotype (light-colored) is 0.25.What is the frequency of the Dd genotype (dark-colored) ?

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Which of the following statements about fossils is least accurate?

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A variety of genotypes and phenotypes in a population is useful because it

Correct AnswerverifiedShow Answer

One of the most important observations made by Darwin on his trip around the world was that

Correct AnswerverifiedShow Answer

The Afrikaner population of South Africa is descended mainly from a few Dutch colonists.The Afrikaner population now has a much higher frequency of the gene that causes Huntington disease than is present in the rest of the people of South Africa.This is likely due to

Correct AnswerverifiedShow Answer

The organisms,examined by Darwin on the Galapagos Islands,which were most important in his development of the theory of natural selection,were

Correct AnswerverifiedShow Answer

If there is a change in allele frequency of a gene pool due to chance,it is referred to as

Correct AnswerverifiedShow Answer

Which type of natural selection occurs when an intermediate phenotype is favored?

Correct AnswerverifiedShow Answer

Inbreeding within a population is an example of

Correct AnswerverifiedShow Answer

A research paper on the man who proposed the idea of inheritance of acquired characteristics would be on which person?

Correct AnswerverifiedShow Answer

A biologist finds structures that serve the same function but are not considered similar,nor do they share a recent common ancestor.These are

Correct AnswerverifiedShow Answer

If the Hardy-Weinberg equilibrium is met,what is the net effect?

Correct AnswerverifiedShow Answer

Natural selection was independently proposed as a means of evolution by which of the following individuals?

Correct AnswerverifiedShow Answer

Birds and insects both have wings,but we do not consider this similarity as evidence of relatedness because

Correct AnswerverifiedShow Answer

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